I successfully applied the fix proposed by ehtron:
right click on panel,
select add applets,
un-check network,
restart.
Then suspend works without issue, and Cinnamon is usable. This worked on two different laptops, Mint 18.3, Cinnamon 3.6.7.

angus46 wrote:I successfully applied the fix proposed by ehtron:
right click on panel,
select add applets,
un-check network,
restart.
Then suspend works without issue, and Cinnamon is usable. This worked on two different laptops, Mint 18.3, Cinnamon 3.6.7.

For me even disabling the applet "Network Manager", the problem continue

angus46 wrote:I successfully applied the fix proposed by ehtron:
right click on panel,
select add applets,
un-check network,
restart.
Then suspend works without issue, and Cinnamon is usable. This worked on two different laptops, Mint 18.3, Cinnamon 3.6.7.

For me even disabling the applet "Network Manager", the problem continue

Update: After update kernel and restart seems to be fixed...(with network manager disabled)

Had the same problem on my Cinnamon for a while (seems like since a Mint 18 upgrade) and finally figured it out. I had a systemd script to automatically restart the network-manager service after restart as outlined here. This was causing the cinnamon crash, no matter if I had the Network applet enabled or not. Disabling this script solved the problem. The systemd script isn't needed anymore, since whatever issue that was causing the WiFi to not reconnect after suspend has been resolved.